Seymour Duncan AHB-1b Blackouts 8-String Active Humbucker Bridge Black The Seymour Duncan AHB-1b Blackouts 8-string is a 9V active bridge humbucker pickup that provides more extended frequency response with less compression Seymour Duncan engineers have captured the tone guitarists want in an active design with the benefits of balanced inputs Not only do Seymour Duncan Blackouts active humbuckers have less hum than most active humbucker pickups, they also have more lows, more highs, and more output Simply put, Blackouts have more tone than most active pickups Players will find far fewer problems with hum, especially near computer monitors and fluorescent lighting